AQUASONIC WATER-ATOMIZING FIRE SUPPRESSION SYSTEM Design, Installation, Recharge, and Maintenance Manual. (Order No. PN437205)

Transcription

1 AQUASONIC WATER-ATOMIZING FIRE SUPPRESSION SYSTEM Design, Installation, Recharge, and Maintenance Manual (Order No. PN437205)

2 ANSUL AQUASONIC WATER-ATOMIZING ENGINEERED FIRE SUPPRESSION SYSTEM DESIGN, INSTALLATION, RECHARGE AND MAINTENANCE MANUAL ANSUL PART NO MARCH 1, 2010 Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

3 Table of Contents Page 1 Form No. Pages I. COMPONENTS US Gallon (189.3 L) Water Tank Assembly F CV-98 Valve/Cylinder Shipping Assembly F Cylinder Bracketing F AUTOPULSE Control System F ANSUL AUTOMAN II-C Releasing Device F Remote Actuator (Optional) F Booster Actuator F HF Electric Actuator F Lever Release Actuator F Flexible Discharge Bend F Water Tank Pressurization Hose and Fitting F Header Vent Plug F Header Safety Burst Disc F Actuation Components F Check Valves F Relief Valve F Vent Poppet F Pressure Switch DPST F Pressure Switch DPDT Explosion-Proof F Pressure Switch 3PST F Pressure Trip F Water Tank Relief Valve F System Shut-Off Valves F Nitrogen Discharge Regulators F Water Pressure Regulator F Atomizer F Pneumatic Selector Valve F Electric Selector Valves F Nameplate AQUASONIC SYSTEM (US) F Nameplate AQUASONIC SYSTEM (EMEA) F Nameplate Main F Nameplate RESERVE F Warning Plate Inside Room With Alarm F Warning Plate Outside Room Without Alarm F Pressure Test Assembly F Check Valves F

4 Table of Contents Page Form No. Pages II. GENERAL INFORMATION Spray Characteristics 2-1 Approvals 2-2 Pendent Mounting of Atomizer 2-2 Sidewall Mounting of Atomizer 2-2 Typical Operation Sequence 2-2 Types of Actuation 2-2 Electrical 2-2 Mechanical 2-2 Pneumatic 2-2 Types of Detection 2-3 Electronic Control Panel 2-3 Electric Releasing Device 2-3 System Limitations AQUASONIC Atomizer 2-3 AQUASONIC Atomizer Placement and Obstructions Usage 2-3 Discharge Path 2-4 Obstruction Allowances Sample Calculation Procedure 2-6 AQUASONIC Atomizer Parameters Pendent (Downward) Position 2-6 Sidewall Position Application of Pendent Constraints Rectangular Array 2-7 Triangular Array Application of Sidewall Constraints Sidewall Mounted Atomizers 2-9 Control of Run-Off 2-9 Ventilation and Leakage 2-9 Relief Venting 2-10 III. PLANNING Initial General Information 3-1 Hazard Information 3-1 Supply Requirements Atomizer Placement Requirements 3-2 Actuation and Alarm Requirements 3-2 Planning for Regulator Setting Procedure 3-2

5 Table of Contents Page 3 Form No. Pages IV. DESIGN Step No. 1 Determine the Floor Area and Gross Volume of the Room 4-1 Step No. 2 Determine the Minimum Number of Atomizers Required 4-1 Step No. 3 Verify Atomizer Array Placement 4-2 Step No. 4 Determine Location of System Supply 4-2 Step No. 5 Sketch Pipe Routing 4-2 Water Calculation Procedure Piping and Fitting Notes 4-3 Step No. 6 Determine Total Atomizer Pressure (TAP) Step No. 7 Select Appropriate Atomizer Assembly 4-8 Step No. 8 Determine Volume of Water Supply Required 4-8 Step No. 9 Determine Number of Water Tanks Required 4-9 Step No. 10 Determine Atomizer Pressure Loss Step No. 11 Determine Regulator Flowing Set Pressure 4-13 Step No. 12 Select the Appropriate Regulator 4-13 Step No. 13 Determine the Number of Nitrogen Cylinders 4-13 Step No. 14 Complete Layout of the System 4-13 Step No. 15 Create a Bill of Materials 4-13 Step No. 16 Create Installation Drawings 4-14 V. INSTALLATION General Information 5-1 Nitrogen Cylinder Installation Bracketing Without Uprights Double Row 5-2 Bracketing With Uprights Back-To-Back 5-2 Bracket With Uprights Double Row Back-To-Back 5-3 Water Tank Installation 5-4 Atomizer Installation 5-4 Releasing Devices 5-5 General Piping Requirements 5-5 Pipe Assembly 5-5 Hanger Requirements 5-5 Actuation Piping Actuation Pipe, Tubing, and Fitting Requirements 5-5 Installation of Actuation Piping 5-6 High Pressure Manifold and Regulator High Pressure Pipe and Fitting Requirements 5-6 Installation of High Pressure Manifold and Regulators Discharge Piping (After Regulators) System Piping, Tubing, and Fitting Requirements 5-7 Installation of Water Tank Pressurization Piping 5-8 Installation of Water Discharge Piping 5-8 Installation of Nitrogen Discharge Piping 5-9 Setting the Regulator

6 Table of Contents Page Form No. Pages V. INSTALLATION (Continued) Installing Detection/Actuation System 5-10 AUTOPULSE with Electric Actuator 5-10 AUTOPULSE with ANSUL AUTOMAN II-C with Pneumatic Actuation 5-10 Installing Actuator Pneumatic Actuation for CV-98 Valve 5-11 Electric Actuator 5-11 Installing the Booster Actuator 5-11 Installing the HF Actuator 5-11 Wiring for HF Actuator to AUTOPULSE Control Panel 5-11 Stacking Actuator 5-12 Installing Remote Pneumatic Actuators 5-12 Electric Pull Station to AUTOPULSE Control Panel 5-12 Installing Accessories Alarms 5-12 Pressure Trip 5-13 Pressure Switch 5-13 Ventilation 5-13 Fill Water Tanks 5-13 VI. TESTING AND PLACING IN SERVICE Testing 6-1 Testing Electric Detection/Actuation System AUTOPULSE Control System CV-98 Valve/HF Actuator/Booster Actuator 6-1 Testing Electric Detection System ANSUL AUTOMAN II-C Release 6-1 Placing In Service Step No. 1 Prepare System Actuation Devices ANSUL AUTOMAN II-C 6-1 Remote Pneumatic Actuator 6-2 Step No. 2 Open Valves 6-2 Step No. 3 Nitrogen Cylinder Pressure 6-2 Step No. 4 Inform Personnel 6-2 Discharge Test 6-2 VII. INSPECTION VIII. MAINTENANCE

7 Table of Contents Page 5 Form No. Pages IX. RESETTING AND RECHARGE Clear Electrical Equipment 9-1 Check Electrical and Mechanical Equipment Piping and Atomizers 9-1 Selector Valves 9-1 Electric Detection System Pressure Switch 9-2 Place System Back in Service Recharge Water Tank 9-2 Recharge Nitrogen Cylinders Remote Pneumatic Actuation 9-3 Lever Actuator 9-3 Electric Manual Pull Station 9-4 Replace ANSUL AUTOMAN II-C Cartridge 9-4 Resetting the HF Actuator 9-4 Resetting the Booster Actuator 9-4 X. APPENDIX Appendix A Selector Valves Appendix B European Cylinder, Bracketing, and Manifold Installation Appendix C Main and Reserve Systems Appendix D Typical Examples A1 A12 B1 B4 C1 C2 D1 D25

8 System Components Page US Gallon (189.3 L) Water Tank Assembly The AQUASONIC System agent tank is a 50 US gal (189 L) capacity water tank featuring a 0.17 in. (4.3 mm) thick ASME pressure vessel that is certified to 150 psi (14.8 bar). This vessel is both ASME and 97/23/EC (PED) CE marked. The tank features a 2 in. (5.1 cm) fill opening; the tank also has an outlet that is positioned for optimal flow, containing a Y strainer which will reduce the number of foreign particles in the water stream reaching the atomizers. The tank is constructed from 304L stainless material to help ensure rust-free performance. Note: Mounting feet will accept up to a 1/2 in. (12 mm) diameter bolt. Part No Y STRAINER DISCHARGE PORT FILL/ PRESSURIZATION PORT HEIGHT TO CENTER OF PIPE CONNECTION 63.5 IN. (1.61 m) WATER LINE SHUT-OFF VALVE (BLACK) IN. (0.37 m) SQUARE PATTERN FOR MOUNTING FEET TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

9 System Components Page 1-2 CV-98 Valve / Cylinder Shipping Assembly Description The cylinder is factory filled with nitrogen to a nominal pressure of 2900 psi (200 bar). Multiple cylinders can be manifolded together to obtain the required quantity of nitrogen. The cylinder valve can be actuated electrically, pneumatically, and/or manually with approved valve actuation components. All valves are equipped with an anti-recoil feature. The cylinders are shipped with a maintenance record card and protective shipping cap attached to the threaded neck of each cylinder. This cap entirely encloses and protects the valve while in shipment. Component Material Approvals Cylinder Steel Meets DOT 3AA3000 or EN Valve Brass Safety Relief Valve Brass Valve/Cylinder FM Approved Assembly Shipping Cap Steel Shipping Standardized Approximate Amount Dimension Dimension Assembly Cylinder N 2 Capacity Weight of N 2 A B Part No. ft 3 (m 3 ) lb (kg) lb (kg) in. (cm) in. (cm) DOT (16.3) 322 (146) 41.1 (18.6) 68.5 (174.0) 11.0 (27.9) TPED (16.0) 229 (104) 40.0 (18.2) 68.0 (172.7) 10.5 (26.7) CYLINDER SHIPPING CAP PRESSURE GAUGE VALVE SHIPPING CAP RECORD TAG VALVE PRESSURE GAUGE SAFETY RELIEF VALVE HEIGHT TO OUTLET CENTER A B CV-98 INERGEN Valve The CV-98 valve has a ten (10) year warranty. The valve requires no internal maintenance. The valve is sealed closed and must not be disassembled. If there is ever a malfunction of the CV-98 valve, the complete valve must be sent back to ANSUL for warranty replacement. If the external seal is broken, the warranty is voided. Note: Use Flexible Discharge Bend, Part No , when attaching valve to supply pipe or manifold. TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

10 System Components Page 1-3 Cylinder Bracketing Description The cylinder bracketing is designed to rigidly support the installed nitrogen agent cylinders. The bracketing components are constructed of heavy structural steel. Bracket assemblies are available in modules for two to six cylinders and can also be connected together for any combination over six. Bracketing can be assembled to support single row, double row or back-to-back rows of cylinders. Bracketing components are painted with a red enamel coating. Uprights and back frame assemblies can be bolted or welded together, whichever makes the installation more convenient. Component Material Approvals Bracketing Steel FM Approved Shipping Assembly Part No. Description ft3 (16.3 m 3 ) cylinder strap (single cylinder) ft 3 (16.3 m 3 ) cylinder channel with nuts and bolts (single cylinder) Back frame assembly (2 cylinder) Back frame assembly (3 cylinder) Back frame assembly (4 cylinder) Back frame assembly (5 cylinder) Back frame assembly (6 cylinder) Upright, for 575 ft 3 (16.3 m 3 ) cylinders (used either for right side, left side or center (center upright required when connecting seven or more cylinders in a row)) Single row or back-to-back row bracket foot (left side) Single row or back-to-back row bracket foot (right side) Double row bracket foot (left side) Double row bracket foot (right side) Center upright foot Connector (required to hook together back frames for seven or more cylinders) in. (33.0 cm) carriage bolt with nut (for single row 575 ft 3 (16.3 m 3 ) cylinders) in. (68.6 cm) carriage bolt with nut (for double row 575 ft 3 (16.3 m 3 ) cylinders) Cylinder clamp (2 cylinders) Cylinder clamp (3 cylinders) Weigh rail support single row Weigh rail support double row Weigh rail support back-to-back rows Weigh rail support back-to-back double row

11 Multi-Cylinder Single Cylinder UPRIGHT WEIGH RAIL SUPPORT BACK FRAME CYLINDER CLAMP CARRIAGE BOLT WITH NUT RIGHT BRACKET FOOT CHANNEL CLAMP LEFT BRACKET FOOT TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

12 System Components Page 1-4 AUTOPULSE Control System Description The AUTOPULSE Control System provides a range of features and benefits, ranging from simple detection through counting circuits. Several models of the AUTOPULSE Control System are available depending on the type of hazard being protected. Refer to the ANSUL Detection and Control Application Manual for detailed information concerning all AUTOPULSE Control Systems TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

13 System Components Page 1-5 ANSUL AUTOMAN II-C Releasing Device The ANSUL AUTOMAN II-C Releasing Device consists of a metal enclosure which contains a spring-loaded puncture pin release mechanism, actuation cartridge, electrical circuitry, and an input/output terminal strip for making electrical connections. The ANSUL AUTOMAN II-C Releasing Device provides automatic pneumatic actuation of the AQUASONIC System. When wired to an AUTOPULSE Control System, it will provide supervised electric detection and release. The ANSUL AUTOMAN II-C Releasing Device also provides manual actuation using the strike button on the release enclosure or with the optional remote manual cable pull station. When an AUTOPULSE Control System is used, manual actuation is accomplished using an electric manual pull station. The ANSUL AUTOMAN II-C Releasing Device requires an LT-10-R nitrogen cartridge for system actuation. Cartridge must be ordered separately LT-10-R CARTRIDGE Part No. Description ANSUL AUTOMAN II-C Releasing Device Shipping Assembly ANSUL AUTOMAN II-C Explosion/Weather- Proof Releasing Device Shipping Assembly (24 VDC) ANSUL AUTOMAN II-C Explosion/ Weather-Proof Releasing Device Shipping Assembly (120 VAC) ANSUL AUTOMAN II-C Explosion/ Weather-Proof Releasing Device Shipping Assembly (240 VAC) LT-10-R Nitrogen Cartridge Shipping Assembly (order separately) TPED Approved LT-10-R Nitrogen Cartridge Shipping Assembly (order separately) LT-30-R Nitrogen Cartridge Shipping Assembly (order separately) TPED Approved LT-30-R Nitrogen Cartridge Shipping Assembly (order separately) Cocking Lever (order separately) ANSUL AUTOMAN II-C Releasing Device Mounting Bracket ANSUL AUTOMAN II-C Explosion/Weather- Proof Releasing Device Mounting Bracket TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

14 System Components Page 1-6 Remote Actuator (Optional) The remote actuator is a device that allows for system actuation from a location either near or far from the AQUASONIC System Supply. Two types of actuators are offered. One requires an LT-10-R nitrogen cartridge, and the other requires an LT-30-R nitrogen cartridge. When actuated, the cartridges will supply pressure to the CV-98 valve pilot actuation port on the pilot cylinder, allowing nitrogen to flow. Cartridge must be ordered separately. Part No. Description Remote Actuator Shipping Assembly LT-10-R Remote Actuator Shipping Assembly LT-30-R LT-10-R Nitrogen Cartridge Shipping Assembly (order separately) TPED Approved LT-10-R Nitrogen Cartridge Shipping Asembly (order separately) LT-30-R Nitrogen Cartridge Shipping Assembly (order separately) TPED Approved LT-30-R Nitrogen Cartridge Shipping Assembly (order separately) Maximum Combined Length of Actuation Piping 1/4 in. 1/4 in. Stainless Steel Cartridge Schedule 40 Piping Tubing (0.028 in. wall) LT-10-R 50 ft (15 m) 150 ft (46 m) LT-30-R 150 ft (46 m) 450 ft (137 m) TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

15 System Components Page 1-7 Booster Actuator Description The Booster Actuator, Part No , is used when electric actuation is required on the 1 in. selector valve, 2 in. selector valve, or the CV-98 cylinder valve. The actuator mounts directly to the component and then an HF electric actuator mounts to the top of the booster actuator. The Booster Actuator requires resetting after actuation. A Reset Tool, Part No , is available for this use. Component Material Approvals Booster Stainless Steel FM Approved Actuator and Brass 1 1/4 18 UNEF Ø /8 18 UNEF TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

16 System Components Page 1-8 HF Electric Actuator Description Electrical actuation is accomplished by an HF electric Actuator, Part No , interfaced through an AUTOPULSE Control System. This actuator can be used in hazardous, indoor environments where the ambient temperature range is between 0 F to 130 F ( 18 C to 54 C). The HF electric actuator meets the requirements of N.E.C. Class I, Div. 1, Groups B, C, D and Class II, Div. 1, Groups E, F, G. A maximum of two HF electric actuators can be used on a single AUTOPULSE release circuit. When utilizing only one HF electric actuator, an in-line resistor, Part No , is required in the supervised release circuit. In auxiliary or override applications, a manual-local override valve actuator or a manual cable pull actuator can be installed on top of the HF electric actuator by removing the safety cap. An arming tool, Part No , is required to reset the actuator after operation. The actuator contains a standard 1/2 in. threaded female straight connector for electrical conduit hookup. Technical Information Nominal Voltage: amps Rated Voltage: Minimum: VDC Maximum: VDC Thread Size/Type: /2 in. straight female for electrical conduit hookup Material: Body: Brass Plunger: Stainless Steel FM Approved 2 1/4 IN. (57 mm) 1 1/ / /2 IN. (114 mm) TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

17 System Components Page 1-9 Lever Release Actuator Description The manual lever release actuator provides a manual means of actuating cylinder valves and selector valves. This can be accomplished by direct manual actuation of its pull lever or cable actuation when used in conjunction with a remote manual pull station. When used with a remote manual pull station, the pull station must contain the components necessary to meet the actuator lever traveling requirements of 7 in. (178 mm). The actuator is shipped with ring pin and chain attached. If the ring pin is not required, it must be removed. Failure to remove the ring pin/chain assembly will prevent system actuation if a remote cable pull actuation system is employed and the ring pin is accidentally installed in the actuator. Four actuators are available. Each is designed for a specific component. Note: For use with systems without selector valves. Component Material Approvals All Manual Brass with UL Listed Cable-pull Stainless Steel Pin FM Approved Actuators Shipping Assembly Part No. Description Lever Release (1 1/8-18 mounting thread) Mounts directly to a CV-98 cylinder valve for service and installation only. Do not use for actuation in final system configuration Lever Release (1 1/4-18 mounting thread) Mounts directly to an HF electric actuator. PIN 3 7/8 IN.* (9.8 cm) 3 7/8 IN. (9.8 cm) DEPTH: 3 7/8 IN. (7.6 cm) * Add 1 9/16 in. (3.9 cm) to height when lever is in the straight up position. TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

18 System Components Page 1-10 Flexible Discharge Bend Description The valve Flexible Discharge Bend (Part No ) is a 5/8 in. (1.59 cm) ID extra-heavy flexible hose which connects the valve discharge outlet to the fixed piping or header manifold. The discharge bend has a special female thread for connecting to the valve outlet and a male 1/2 in. NPT thread for connecting to the fixed piping or manifold. The discharge bend will withstand a pressure of 9000 psi (621 bar). Its flexible connection allows for easy alignment of multiple cylinder banks to fixed piping. Each bend has a built-in check valve that prevents loss of agent should the system discharge while any cylinder is removed. Shipping Assembly Part No. Description Flexible discharge bend Washer The equivalent length of this hose is equal to 18 ft (5.5 m) of 1/2 in. Sch. 40 pipe. Thread Size/Type Component Material Valve End Manifold End Approvals 5/8 in. Flexible SAE 100 R2 Special to 1/2 in. NPT Male UL Listed (EX-4510) Discharge Bend Type AT mate with FM Approved CV-98 Valve FEMALE ADAPTOR (BRASS) WASHER CHECK 18 7/8 IN. (47.9 cm) SWAGE ON 1/2 IN. NPT MALE COUPLING VALVE END MANIFOLD/END TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

19 System Components Page 1-11 Water Tank Pressurization Hose and Fitting The water tank pressurization hose (Part No ) is a 1/2 in. diameter flexible hose which connects the water tank to the regulated water tank pressurization piping. This allows for easy removal of the water tank fill connection for tank inspection and filling. The swivel adaptor (Part No ) provides a swivel connection which allows installation of the hose without twisting the hose. Part No Hose Assembly IN. (74.1 cm) Part No Swivel Adapter Union TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

20 System Components Page 1-12 Header Vent Plug Description The header vent plug is used to release low pressure buildup that may occur in a closed system. The header vent plug must be installed on every high pressure manifold where cylinders are connected. The header vent plug must be installed on the cylinder sides of the check valves on both main and reserve systems to relieve any pressure that may leak past the check valve and accidentally actuate the reserve system while the main system is discharging. Shipping Assembly Part No. Description Header vent plug Component Material Thread Size/Type Approvals Vent Plug Body: 1/4 in. NPT Male FM Approved Brass Spring: Bronze Seal: Neoprene 1.69 IN. (43 mm) 1.50 IN. (38 mm) 0.71 IN. (18 mm) TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

21 System Components Page 1-13 Header Safety Burst Disc Description The manifold relief valve is used to release high pressure build-up that may occur in a closed system. A manifold relief valve must be installed on every high pressure manifold where cylinders are connected and on every manifold isolated by a selector valve or check valve. Internal safety disc will rupture between psi ( bar). Shipping Assembly Part No. Description Manifold Relief Valve Component Material Thread Size/Type Approvals Manifold Relief Valve Body: 1/2 in. NPT Male FM Approved Brass CE Approved SAFETY NUT SAFETY DISC BODY TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

22 System Components Page 1-14 Actuation Components Description The Stainless Steel Actuation Hose is used to connect the actuation line flared tees between each agent tank. The hose has the same thread, 7/16-20, as the flared tees. The actuation hose allows flexibility between the rigid actuation piping and the tank valve. 7/16 20 J.I.C. 1/4 IN. NPT MALE Shipping Assembly Part No. Description Stainless Steel Braided Hose, 16 in. (40.6 cm) Female-to-Female 7/ / Stainless Steel Braided Hose, 20 in. (50.8 cm) Female-to-Female Stainless Steel Braided Hose, 24 in. (60.9 cm) Female-to-Female Stainless Steel Braided Hose, 12 in. (30.5 cm) Male-to-Female Stainless Steel Braided Hose, 16 in. (40.6 cm) Male-to-Female Stainless Steel Braided Hose, 20 in. (60.9 cm) Male-to-Female Stainless Steel Braided Hose, 32 in. (81.3 cm) Male-to-Female Stainless Steel Braided Hose, 42 in. (107cm) Male-to-Female Additional Actuation Fittings Part No. Description CV-98 Actuation Adapter Male Straight Connector (7/16-20 JIC x 1/4 in. NPT) Male Elbow (7/16-20 JIC x 1/8 in. NPT) Male Elbow (7/16-20 JIC x 1/4 in. NPT) Male Branch Tee (7/16-20 JIC x 1/8 in. NPT) Male Branch Tee (7/16-20 JIC x 1/4 in. NPT) TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

23 System Components Page 1-15 Check Valves Description Actuation line check valves are used to prevent actuation line pressure from unnecessarily pressurizing sections of actuation piping and preventing cylinder pressure from escaping through the actuation line relief valve. Part No Shipping Assembly Part No. Description /4 in. Check Valve (Female-to-Female) /4 in. Check Valve (Male-to-Male) Part No TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

24 System Components Page 1-16 Relief Valve Description The actuation line relief valve allows excess actuation line pressure to be vented from the actuation piping. Part No Shipping Assembly Part No. Description Safety Relief Valve 275 psi (18.9 bar), 1/4 18 NPT TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

25 System Components Page 1-17 Vent Poppet Description The 2-Way Poppet Valve (Part No. 1732) allows the remaining actuation line pressure to be manually vented from the actuation line prior to resetting and recharge of the system. Part No Shipping Assembly Part No. Description 1732 Two-Way Poppet Valve 1/8 in. 27 Male NPT TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

26 System Components Page 1-18 Pressure Switch DPST Description The pressure switch is operated by the nitrogen agent pressure when the system is discharged. The pressure switch can be used to open or close electrical circuits to either shut down equipment or turn on lights or alarms. The double pole, single throw (DPST) pressure switch is constructed with a gasketed, water tight housing. The housing is constructed of malleable iron, painted red. A 1/4 in. NPT pressure inlet is used to connect the 1/4 in. pipe from the AQUASONIC system. The pressure switch can be installed either before or after the pressure reducer in the distribution piping. Minimum operating pressure is 50 psi (3.5 bar). Shipping Assembly Part No. Description Pressure switch DPST Component Material Thread Size/Type Electrical Rating Approvals Pressure Switch Switch: Conduit Inlet: 3/4 in. NPT Female 2 HP 240 VAC/ FM Approved DPST BAKELITE Pressure Inlet: 1/4 in. NPT Female 480 VAC Housing: 2 HP 250 VDC, Malleable 30A 250V AC/DC Iron 5A 480V AC/DC Piston: Brass Cover: Brass 3 5/8 IN. (9.2 cm) TO ELECTRICAL EQUIPMENT TO BE CONTROLLED MALLEABLE IRON FINISH RED PAINT BRASS RESET PLUNGER MOISTURE-PROOF JOINT 2 7/8 IN. (7.3 cm) GASKET NUT O RING GASKET NAMEPLATE DOUBLE POLE HEAVY DUTY TOGGLE SWITCH WITH FULLY ENCLOSED BAKELITE BASE 4 9/16 IN. (11.5 cm) BRASS PISTON PISTON O RING GASKET TO POWER 3/4 IN. ELECTRICAL CONDUIT OUTLETS 1/4 IN. UNION /64 IN. (7.5 mm) MOUNTING HOLE TYP. 2 PLACES 1/4 IN. PIPE FROM CYLINDERS BAKELITE is a trademark of Union Carbide Corp. TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

27 System Components Page 1-19 Pressure Switch DPDT Explosion-Proof Description The pressure switch is operated by the nitrogen agent pressure when the system is discharged. The pressure switch can be used to open or close electrical circuits to either shut down equipment or turn on lights or alarms. The double pole, single throw (DPST) pressure switch is constructed with a gasketed, water tight housing. The housing is constructed of malleable iron, painted red. A 1/4 in. NPT pressure inlet is used to connect the 1/4 in. pipe from the AQUASONIC system. The pressure switch can be installed either before or after the pressure reducer in the distribution piping. Minimum operating pressure is 50 psi (3.5 bar). Shipping Assembly Part No. Description Pressure switch DPDT Component Material Thread Size/Type Electrical Rating Approvals Pressure Switch Housing: Conduit Inlet: 3/4 in. NPT Female 10A VAC FM Approved DPDT Malleable Iron Pressure Inlet: 1/4 in. NPT Female 5A VAC 1/4 IN. PIPE CONNECTION TO CYLINDERS 1/4 IN. UNION 3/8 IN. X 1/4 IN. BUSHING 3/4 IN. CONDUIT OUTLET 7 7/8 IN. (20 cm) 6 1/2 IN. (16.5 cm) 5 3/16 IN. (14.7 cm) 5 1/8 IN. (13 cm) NAMEPLATE 2 5/8 IN. (6.6 cm) 3 9/16 IN. (9 cm) 2 11/32 IN. MOUNTING HOLES /8 IN. (14.2 cm) 3/4 IN. CONDUIT OUTLET Note: Suitable for hazardous locations, Class I, Division I, Groups C, D, and Class II, Division I, Groups E, F, G. TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

28 System Components Page 1-20 Pressure Switch 3PST Description The pressure switch is operated by the nitrogen agent pressure when the system is discharged. The pressure switch can be used to open or close electrical circuits to either shut down equipment or turn on lights or alarms. The three pole, single throw (3PST) pressure switch is constructed with a gasketed, water tight housing. The switch may be used for 3 phase wiring requirements. The housing is constructed of malleable iron, painted red. A 1/4 in. NPT pressure inlet is used to connect the 1/4 in. pipe from the AQUASONIC system. The pressure switch can be installed either before or after the pressure reducer in the distribution piping. Minimum operating pressure is 50 PSI (3.5 bar) Shipping Assembly Part No. Description Pressure switch 3PST Component Material Thread Size/Type Electrical Rating Approvals Pressure Switch Switch: Conduit Inlet: 3/4 in. NPT Female 30A VAC FM Approved 3PST BAKELITE Pressure Inlet: 1/4 in. NPT Female 20A VAC Housing: 3 HP VAC Malleable 7.5 HP VAC Iron 15 HP VAC Piston: 3 PHASE AC Brass 4 IN. (10.1 cm) 3 1/16 IN. A (7.7 cm) RESET KNOB 3 3/4 IN. (9.5 cm) MOISTURE-PROOF GASKET SNAP LOCK-RING O RING GASKET 3/4 IN. NPT PISTON ROD 5 3/16 IN. (13.1 cm) 3 7/8 IN. (9.8 cm) SPRING HALF ROUND ARM TOGGLE SWITCH WITH FULLY ENCLOSED BAKELITE BASE SPACER HALF ROUND ARM SPRING NAMEPLATE BRASS SWITCH HOUSING PISTON ROD 4 9/32 IN. MOUNTING HOLES PISTON O RING GASKET PISTON PISTON-SPOT NUT 3/4 IN. BRASS PLUG SWIVEL NUT UNION HEX BUSHING 3/8 IN. X 1/4 IN. A SECTION A A BAKELITE is a trademark of Union Carbide Corp. TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

29 System Components Page 1-21 Pressure Trip Description The pressure trip is connected to the actuation or discharge line of an AQUASONIC system. By either pneumatic or manual actuation, the pressure trip can release spring or weight powered devices to close doors and windows, open fuel dump valves, close fire dampers or close fuel supply valves. The pressure trip is constructed of brass with two 1/4 in. NPT fittings for connection to discharge or actuation lines. The link on the pressure switch is released either pneumatically, by agent discharge pressure; or manually, by use of the pull ring. The link then releases the device which performs the auxiliary functions. Note: Operating pressure must be a minimum of 75 psi (5.2 bar) with a maximum load of 70 lb (31.8 kg) Shipping Assembly Part No. Description 5156 Pressure trip Component Material Thread Size/Type Approvals Pressure Trip Brass 1/4 in. NPT Female FM Approved TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

30 System Components Page 1-22 Water Tank Relief Valve Description The water tank relief valve (Part No ) is a high flow relief valve that protects the water tanks from overpressurization. Only one relief valve is required in the water tank pressurization piping. Shipping Assembly Part No. Description /2 in. Safety Relief Valve 150 psi (10.3 bar), CE marked TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

31 System Components Page 1-23 System Shut-Off Valves Description The following system shut off valves are available to provide for safe inspection and maintenance of the system. Handles are color coded red for nitrogen, black for water. Nitrogen Shut-Off Valves Shipping Assembly Part No. Description Material Approvals Ball Valve Assembly Brass FM 1 1/2 in. NPT, Approved Nitrogen Inlet Ball Valve Assembly Brass FM 1/2 in. NPT, Approved Nitrogen Inlet Water Shut-Off Valves Shipping Assembly Part No. Description Material Approvals Ball Valve Assembly Brass FM 3/4 in. NPT, Approved Tank Valve Ball Valve Assembly Brass FM 1 1/2 in. NPT, Approved Tank Valve Water/Nitrogen Visual Tamper Seal Shipping Assembly Part No. Description Visual Tamper Seal TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

32 System Components Page 1-24 Nitrogen Discharge Regulators Description The nitrogen discharge regulators are pilot operated, highflow regulators that provide the necessary pressure control at the high-flow rates demanded by the AQUASONIC system. The assemblies are equipped with an adjustable pilot regulator that allows the system pressure to be field set according to the requirements for each specific application. Nitrogen Regulators Shipping Assembly Part No. Description to 5 Atomizer Regulator 600 SCFM (1000 N m 3 /hour) Part No IN. NPT, MALE 15 IN. (379 mm) 10.5 IN. (266 mm) 1 1/2 IN. NPT, FEMALE Replacement Inlet Filter to 15 Atomizer Regulator 1800 SCFM (3000 N m 3 /hour) Part No IN. (264 mm) 1 IN. NPT, MALE 1 1/2 IN. NPT, FEMALE 16 IN. (408 mm) TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

33 System Components Page 1-25 Water Pressure Regulator Description The regulator is factory set to provide a delivery pressure of 125 psi (8.3 bar), allowing the proper nitrogen pressure to discharge the water from the tank to the atomizer. 3/8 NPT connections. Material: Brass and chrome plated. Note: A maximum of four 50 gal (189 L) water tanks can be pressurized with a single regulator. Regulators must be piped in parallel to a common water tank pressurization manifold for systems requiring more than one regulator Water Regulator Shipping Assembly Part No. Description Regulator, Tested TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

34 System Components Page 1-26 Atomizer Description The AQUASONIC Atomizer utilizes patent pending advanced technology, combining separate feeds of compressed nitrogen gas and water to generate and uniformly distribute water droplets throughout a protected volume. WATER FLOW CONTROL ORIFICE MOUNTING PLATE NITROGEN INLET Each atomizer is delivered pre-trimmed with the appropriate water flow control orifice, strainer, mounting plate, and dust cap in place. The water supply inlet is 1/2 in. NPT, and the nitrogen supply inlet is 1 in. NPT. The AQUASONIC Atomizer utilizes an in-line restricting orifice plate to generate the appropriate water flow. The system design calculation procedure found in the design section must be used to determine the required atomizer. ATOMIZER DUST CAP WATER SUPPLY STRAINER WATER INLET Note: When ordering an AQUASONIC System, the atomizer is based on selected orifice size. Atomizer Assembly Selection Atomizer Pressure Range Atomizer Assembly Part No psi ( bar) psi ( bar) psi ( bar) psi ( bar) psi ( bar) Replacement Y-Strainer Screen Part No TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

35 System Components Page 1-27 Pneumatic Selector Valve Selector valves are used when two or more hazard enclosures will be protected with a single supply or a single main and reserve system. Selector valves are operated pneumatically or electrically. When electrical operation is required, a solenoid valve mounted in the actuation line manifold on the system sends actuation line pressure from the ANSUL AUTOMAN II-C release to the appropriate selector valve. Up to eight hazard enclosures may be protected by a single supply. Selector valve assemblies may be used in conjunction with optional pneumatic remote actuators where required. Part No /2 IN. DISCHARGE SELECTOR VALVE VISUAL INDICATOR PURGE VALVE 3/4 IN. WATER OUTLET 1 1/2 IN. NITROGEN OUTLET 3/4 IN. DISCHARGE SELECTOR VALVE An AQUASONIC selector valve assembly consists of a 3/4 in. selector valve for water, a 1 1/2 in. selector valve for nitrogen, brass inlet and outlet piping with union couplings, a regulator to control actuation pressure, actuation line connections and check valves, a poppet-style purge valve for the actuation line, an over pressure relief valve for the actuation line, and a mounting plate. Actuation line pressure is regulated at 50 psi (3.4 bar). Once activated, the selector valves will remain open until the actuation line pressure is purged from the actuation line. 1/4 IN. REGULATOR, PRESET 50 PSI (3.4 BAR) 1/4 IN. FROM OPTIONAL MANUAL REMOTE ACTUATOR C B 1/4 IN. TO CHECK VALVE ON SYSTEM ACTUATION LINE A 1/4 IN. INLET FROM SOLENOID VALVE OUTLET OVER PRESSURE RELIEF VALVE 3/4 IN. WATER INLET 1 1/2 IN. NITROGEN INLET The solenoid is 24 volt DC 11.6 watts 0.48 amps. Pneumatic Selector Valve Equivalent Length OUT TO SELECTOR VALVE ASSEMBLY 1/4 IN. CONTROL LINE SELECTOR VALVE 3/4 in ft 1 1/2 in ft A PORT TO CONNECT TO MANIFOLD PORT TO CONNECT TO MANIFOLD B IN TO SYSTEM FROM SELECTOR VALVE ASSEMBLY TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

36 System Components Page 1-28 Electric Selector Valves Description Solenoid-operated selector valves are available in two sizes: 3/4 in. and 1 1/2 in. The 3/4 in. selector valve has a 24 volt DC 11.6 watt coil that draws 0.48 amps. The 1 1/2 in. selector has a 24 volt DC 22.6 watt coil that draws 1 amp. Each valve can be used for either water or nitrogen lines. Electric Selector Valve Equivalent Length Part No /8 IN. (15.5 cm) 4 3/8 IN. (11.1 cm) 3/4 in ft 1 1/2 in ft Shipping Assembly Part No. Description /4 in. Electric Selector Valve /2 in. Electric Selector Valve Part No IN. (10.2 cm) 2 3/4 IN. (7 cm) /8 IN. (10.6 cm) 3 7/8 IN. (9.8 cm) 5 1/8 IN. (13 cm) TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

37 System Components Page 1-29 Nameplate AQUASONIC System (US) TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

38 System Components Page 1-30 Nameplate AQUASONIC System (EMEA) TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

39 System Components Page 1-31 Nameplate MAIN Description The MAIN nameplate is available for labeling components and/or remote pull stations to distinguish them from reserve system components. The nameplate is furnished with four mounting holes for ease of installation. Shipping Assembly Part No. Description Nameplate MAIN Component Material Mounting Hole Size Approvals Nameplate Aluminum 13/64 in. (0.52 cm) FM Approved 5 1/2 IN. (13.9 cm) 4 7/8 IN. (12.4 cm) 5/16 IN. (.8 cm) 5/16 IN. (.8 cm) MAIN 1 7/8 IN. (4.7 cm) 2 1/2 IN. (6.4 cm) PART NO /64 IN. (.5 cm) DIAMETER HOLES TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

40 System Components Page 1-32 Nameplate RESERVE Description The RESERVE nameplate is available for labeling components and/or remote pull stations to distinguish them from main system components. The nameplate is furnished with four mounting holes for ease of installation. Shipping Assembly Part No. Description Nameplate RESERVE Component Material Mounting Hole Size Approvals Nameplate Aluminum 13/64 in. (.52 cm) FM Approved 5 1/2 IN. (13.9 cm) 4 7/8 IN. (12.4 cm) 5/16 IN. (.8 cm) 5/16 IN. (.8 cm) RESERVE 1 7/8 IN. (4.8 cm) 2 1/2 IN. (6.4 cm) PART NO /64 IN. (.52 cm) DIAMETER HOLES TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

41 System Components Page 1-33 Warning Plate Inside Room With Alarm Description The warning plate is available for mounting inside the hazard area to warn the personnel to vacate the hazard area when the alarm sounds. The warning plate is furnished with four mounting holes for ease of installation. The plate is constructed of aluminum. Shipping Assembly Part No. Description Warning Plate inside room with alarm Component Material Mounting Hole Size Approvals Warning Plate Aluminum 1/4 in. (0.64 cm) FM Approved WHEN ALARM SOUNDS VACATE AT ONCE AQUASONIC SYSTEM BEING RELEASED 7.00 LABEL NO TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

42 System Components Page 1-34 Warning Plate Outside Room Without Alarm Description The warning plate is available for mounting outside the hazard area to warn the personnel that the space is protected by an AQUASONIC system and no one should enter after a discharge without being properly protected. The warning plate is furnished with four mounting holes for ease of installation. Shipping Assembly Part No. Description Warning Plate outside room Component Material Mounting Hole Size Approvals Warning Plate Aluminum 7/32 in. (0.56 cm) FM Approved 8.00 WARNING THIS SPACE IS PROTECTED BY AN AQUASONIC FIRE SUPPRESSION SYSTEM. WHEN SYSTEM IS DISCHARGED AS A RESULT OF FIRE, CAUTION MUST BE TAKEN TO AVOID EXPOSURE TO PRODUCTS OF COMBUSTION. DO NOT ENTER WITHOUT APPROVED SELF- CONTAINED BREATHING APPARATUS OR UNTIL VENTILATION HAS BEEN OPERATED FOR AT LEAST 15 MINUTES LABEL NO TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

43 System Components Page 1-35 Pressure Test Assembly Description The Pressure Test Assembly, Part No , is required to properly perform the annual pressure check per NFPA 750. The pressure test assembly consists of a calibrated gauge, adaptor, and handwheel. The assembly is attached to the fill port of the CV-98 or nitrogen cylinder valve. As the handwheel is turned in, the fill port is opened and the pressure is read on the gauge. After verifying the pressure in the cylinder, the handwheel is turned out, closing the fill port, and the assembly can be removed. Shipping Assembly Part No. Description Pressure Test Assembly CV-98 Component Material Approvals Handwheel Cast Zinc Alloy FM Approved Body Brass Adaptor Brass Gauge Stainless Steel Case Laminated Safety Glass Lens TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

44 System Components Page 1-36 Check Valves Description Check valves are used in main/reserve and selector valve systems. On main/reserve systems, the check valve prevents pressurization of the reserve system manifold by blocking the flow of nitrogen and/or water from the main system to the reserve system. The check valve allows nitrogen and/or water flow from the reserve (if actuated) to pass through into the distribution piping. The check valves are available in sizes of 3/4 in., 1 in., and 1 1/2 in. Shipping Assembly Part No. Description /4 in. check valve in. check valve /2 in. check valve Equivalent Length Component Material Thread Size/Type Body Type Approvals (Sch. 80 Pipe) Check Valve Bronze 3/4-14 NPT Female Threaded FM Approved 24.0 ft (7.3 m) Check Valve Bronze /2 NPT Female Threaded FM Approved 28.0 ft (8.5 m) Check Valve Bronze 1 1/2-11 1/2 NPT Female Threaded FM Approved 51.0 ft (15.5 m) Note: For FM Approved systems, each FM Approved check valve, after discharge, must be disassembled, inspected for corrosion and wear, replace gasket and parts as necessary, and reassembled. A BONNET SPRING CHECK B BODY Check Valve Threaded Dimension A Dimension B Valve Size in. (cm) in. (cm) 3/4 in. 3 5/8 (9.2) 3 1/8 (7.9) 1 in. 4 1/8 (10.4) 3 3/4 (9.5) 1 1/2 in. 5 1/2 (13.9) 5 1/8 (13) TYCO FIRE SUPPRESSION & BUILDING PRODUCTS, MARINETTE, WI Form No. F Copyright 2010 Tyco Fire Suppression & Building Products. All rights reserved.

45 SECTION II Page 2-1 General Information The AQUASONIC Water-Atomizing Fire Suppression System conforms to the requirements of NFPA 750 "Standard on Water Mist Fire Protection Systems. System inspection, testing, maintenance, and personnel training shall be implemented in accordance with NFPA 750 or equivalent national or international standards. The AQUASONIC System is a total-flood water atomizing system designed to protect Class B flammable liquid hazards in machinery spaces, insulated and non-insulated combustion turbine enclosures, and incidental flammable liquid storage. The machinery space application includes rooms with machinery such as oil pumps, oil tanks, fuel filters, generators, transformer vaults, gear boxes, drive shafts, lubrication skids, diesel engine drive generators, and other similar machinery. The AQUASONIC System can protect a potential hazard with a volume exceeding 9200 ft 3 (260 m 3 ) up to and including ft 3 (1040 m 3 ) with atomizers that use lowpressure, dual-flow, advanced atomization technology to create a minimum 10 minute discharge plume of water droplets that are the optimum size to suppress a Class B fire. The AQUASONIC System has been fire tested within compartmentalized areas and found effective for the suppression of a wide variety of exposed and shielded Class B hydrocarbon pool, spray, and gravity fires. The mechanisms by which the discharge acts to extinguish a Class B fire normally involve a combination of the following factors: 1. Heat extraction from the fire as water is converted into vapor and the fuel is cooled. 2. Dilution of flammable vapors by the entrainment of water vapor, to such an extent that the resultant mixture of vapor will not burn. 3. Cooling of liquid hydrocarbon fuels below vaporization temperature, to such an extent that the vapor will not burn.! CAUTION Unnecessary exposure to systems resulting in low oxygen atmospheres shall be avoided. The normal atmosphere in a room contains approximately 21% oxygen. In enclosures with an extended AQUASONIC discharge, the oxygen concentration may be reduced below 12.5%. The maximum exposure time in any case shall not exceed five minutes from start of discharge. Unprotected personnel shall not enter the area during or after agent discharge.! CAUTION Water-atomizing systems shall not be used for direct application to materials that react with water to produce violent reactions or significant amounts of hazardous products. Such materials include the following: Reactive metals such as lithium, sodium, potassium, magnesium, titanium, zirconium, uranium, and plutonium. Metal alkoxides, such as sodium methoxide. Metal amides, such as sodium amide. Carbides, such as calcium carbide. Halides, such as benzoyl chloride and aluminum chloride. Hydrides, such as lithium aluminum hydride. Oxyhalides, such as phosphorus oxybromide. Silanes, such as trichloromethylsilane. Sulfides, such as phosphorus pentasulfide. Cyanates, such as methylisocyanate. Note: Non-acceptable hazards include rack or palletized storage of flammable or combustible liquids. SPRAY CHARACTERISTICS When sprayed into a hazard, the AQUASONIC Atomizer creates a conical spray pattern which has a diameter of approximately 36 in. (0.9 m) at a distance of 72 in. (1.8 m) and greater from the atomizer. When sprayed within an enclosure, the AQUASONIC Atomizer spray pattern expands slightly and the water droplets are primarily distributed (circulated) around the space through the high velocity atomizing media discharge. As the high velocity discharge plume of tiny droplets approaches the floor or other horizontal obstruction, a large majority of the plume is diverted laterally as well as vertically upwards, filling the space between the core spray patterns and the space above the atomizers. The circulation characteristics of the AQUASONIC Atomizer plume result in rapid, homogenous distribution of water droplets throughout the protected environment.